3 years ago

Can someone help me with these two chemistry questions? (20 points)

1 answer:

8 0

8. A
9. B im not sure

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kifflom [539]

$\\ \sf\longmapsto \dfrac{x^2-1}{x^2+5x+4}\leqslant 0$

$\\ \sf\longmapsto x^2+5x+4>0$

$\\ \sf\longmapsto x^2+4x+x+4>0$

$\\ \sf\longmapsto x(x+4)+1(x+4)>0$

$\\ \sf\longmapsto (x+4)(x+1)>0$

$\\ \sf\longmapsto x>-4\:or x>-1$

$\\ \sf\longmapsto -4$

5 0

2 years ago

pickupchik [31]

1 ton = 2,000 pounds

3 tons = $3,840
2,000 lbs = $3,840
Divide by 2,000
1 lbs = $1.92

The price per pound is $1.92

5 0

2 years ago

IrinaVladis [17]

Answer:

it is the second one i had this question. mark as brainliest

Step-by-step explanation:

8 0

2 years ago

Oksanka [162]

Answer:

6 x 4 x 4 Hope I get u right<3

Step-by-step explanation:

4 0

2 years ago

MAXImum [283]

Needs more information.

6 0

3 years ago